Thread: More chicken
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Old 13-05-2018, 11:26 AM
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kosborn (Kevin)
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Join Date: Mar 2018
Location: Canberra
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Quote:
Originally Posted by PKay View Post
A good start Kevin, lots of nice colour and detail.
Someone else should help with how to fix the artifacts.
Thanks Peter.

Quote:
Originally Posted by Atmos View Post
It is quite a nice colour, well captured and processed.
Lambda Cent is a pretty bright star. The internal reflections you're seeing there look like they're from the filters more so than the ASI1600. Which filters are you using?

If you are wondering the reflections from the ASI1600 look like check this one out and look at the star in the lower right. That colourful square pattern
Thanks Colin. I thought that the internal reflections people were discussing were the reflections between the sensor cover and the filters. I didn't realise there were also issues with reflections actually inside the camera. I'm using the ZWO 7nm filters and I was very careful to put them in the filter wheel the right way around. I found a web page with instructions on how to correct the artefact (http://trappedphotons.com/blog/?p=616) but it's pretty involved and I haven't tried yet. It would probably be easier to remove the square artefact with this method.

Kevin
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